vendredi 21 juillet 2017

Crew Conducts Research to Mitigate the Human Body’s Response to Spaceflight










ISS - Expedition 52 Mission patch.

July 21, 2017

International Space Station (ISS). Animation Credit: NASA

The crew of Expedition 52 wrapped up an intensive week of research on Friday, concentrating on studies in the field of human health and performance.

On Thursday, the crew conducted their second ultrasound for the Sprint investigation, which studies the use of high-intensity, low-volume exercise training to minimize the loss of muscle, bone and cardiovascular fitness during long-duration space excursions. Using meticulous thigh and calf scans through remote guidance from the ground team, these results will help determine what changes astronauts are experiencing in microgravity and how best to manage those fluctuations for future missions.


Image above: Flight Engineers Peggy Whitson and Jack Fischer assess spaceflight-induced changes in muscle volume with the Sprint study.

Flight Engineers Peggy Whitson and Jack Fischer today will gather and transfer Fluid Shifts hardware to the station’s Russian segment in preparation for Fluid Shifts Chibis (Lower Body Negative Pressure) operations that begin on Monday. Fluid Shifts investigates the causes for lasting physical changes to astronaut’s eyes—a side effect of human space exploration in a microgravity environment. It’s theorized that the headward fluid shift in space-faring explorers contributes to these changes. In response, a lower body negative pressure device is being evaluated to see if it can perhaps reverse this fluid shift. As an added bonus, what investigators glean from this study may contribute to the development of countermeasures against lasting changes in vision and prevention of eye damage.

The Expedition 52-53 crew that will lift off to the International Space Station within a week is finalizing preparations at the Baikonur Cosmodrome in Kazakhstan. Cosmonaut Sergey Ryazanskiy, along with astronauts Randy Bresnik and Paolo Nespoli, are slated to launch July 28 at 11:41 a.m. EDT for a six-hour journey to the orbiting laboratory. NASA TV will cover all the activities, so tune in.

Related links:

NASA TV: https://www.nasa.gov/multimedia/nasatv/index.html#public

Sprint: https://www.nasa.gov/mission_pages/station/research/experiments/972.html

Fluid Shifts: https://www.nasa.gov/mission_pages/station/research/experiments/1257.html

Expedition 52: https://www.nasa.gov/mission_pages/station/expeditions/expedition52/index.html

Space Station Research and Technology: https://www.nasa.gov/mission_pages/station/research/index.html

International Space Station (ISS): https://www.nasa.gov/mission_pages/station/main/index.html

Animation (mentioned), Image (mentioned), Text, Credits: NASA/Catherine Williams.

Greetings, Orbiter.ch

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